<template>
  <div>
    <div>
      <el-input style="width: 150px" placeholder="根据区域查询" v-model="zone"></el-input>
      <el-input style="width: 150px; margin: 0 5px" placeholder="根据植物名称查询"  v-model="plant"></el-input>
      <el-button type="primary" @click="load(1)">查询</el-button>
      <el-button type="info" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px 0">
      <el-button type="primary" plain @click="handleAdd" >新增</el-button>
      <el-button type="danger" plain @click="delBatch">批量删除</el-button>
      <el-button type="info" plain @click="exportData">批量导出</el-button>
    </div>
    <el-table :data="tableData" stripe :header-cell-style="{backgroundColor: 'aliceblue', color:'#666'}" @selection-change="handleSelectionChange">
      <el-table-column type="selection" align="center"></el-table-column>
      <el-table-column label="ID" prop="id" align="center"></el-table-column>
      <el-table-column label="区域名称" prop="zone" align="center"></el-table-column>
      <el-table-column label="植物名称" prop="plant" align="center"></el-table-column>
      <el-table-column label="植物类型" prop="type" align="center"></el-table-column>
      <el-table-column label="标准水量" prop="waterRequir"  align="center"></el-table-column>
      <el-table-column label="开始灌溉时间" prop="startTime"  align="center"></el-table-column>
      <el-table-column label="结束灌溉时间" prop="endTime" align="center"></el-table-column>
      <el-table-column label="控制类型" prop="control" align="center"></el-table-column>
      <el-table-column label="操作" align="center" width="180">
        <template v-slot="scope">
          <el-button size="mini" type="primary" plain @click="handleEdit(scope.row)">编辑</el-button>
          <el-button size="mini" type="danger" plain  @click="del(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <div style="margin: 10px 0">
      <el-pagination
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-size="pageSize"
          layout="total, prev, pager, next"
          :total="total">
      </el-pagination>
    </div>

    <el-dialog title="新增农田信息" :visible.sync="fromVisible" width="30%">
      <el-form :model="form" label-width="80px" style="padding-right: 20px" :rules="rules" ref="formRef">
        <el-form-item label="区域名称" prop="zone"><el-input v-model="form.zone" placeholder="区域名称"></el-input></el-form-item>
        <el-form-item label="植物名称" prop="plant"><el-input v-model="form.plant" placeholder="植物名称"></el-input></el-form-item>
        <el-form-item label="植物类型" prop="type"><el-input v-model="form.type" placeholder="植物类型"></el-input></el-form-item>
        <el-form-item label="标准水量" prop="waterRequir"><el-input v-model="form.waterRequir" placeholder="标准水量"></el-input></el-form-item>
        <el-form-item label="开始灌溉时间" prop="startTime"><el-input v-model="form.startTime" placeholder="开始灌溉时间"></el-input></el-form-item>
        <el-form-item label="结束灌溉时间" prop="endTime"><el-input v-model="form.endTime" placeholder="结束灌溉时间"></el-input></el-form-item>
        <el-form-item label="控制类型" prop="control"><el-input v-model="form.control" placeholder="控制类型"></el-input></el-form-item>
      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="fromVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>


  </div>
</template>

<script>
export default {
  name: "Farmland",
  data() {
    return {
      tableData: [],  // 所有的数据
      pageNum: 1,   // 当前的页码
      pageSize: 5,  // 每页显示的个数
      zone: '',
      plant: '',
      total: 0,
      fromVisible: false,
      form: {},
      user: JSON.parse(localStorage.getItem('honey-user') || '{}'),
      ids: []
    }
  },
  created() {
    this.load()
  },
  methods: {
    exportData(){   //批量导出数据
      if (!this.ids.length){  //没有选择行的时候，全部导出，或者根据我的搜索条件导出
        window.open('http://localhost:9090/farmland/export?token=' + this.user.token + "&zone=" + this.zone + "&plant=" + this.plant)
      } else {   //[1,2,3] => '1,2,3'
        let idStr = this.ids.join(',')
        window.open('http://localhost:9090/farmland/export?token=' + this.user.token + '&ids=' + idStr)

      }

},
    delBatch() {
      if (!this.ids.length) {
        this.$message.warning('请选择数据')
        return
      }
      this.$confirm('您确认批量删除这些数据吗？', '确认删除', {type: "warning"}).then(response => {
        this.$request.delete('/farmland/delete/batch', { data: this.ids }).then(res => {
          if (res.code === '200') {   // 表示操作成功
            this.$message.success('操作成功')
            this.load(1)
          } else {
            this.$message.error(res.msg)  // 弹出错误的信息
          }
        })
      }).catch(() => {})
    },
    handleSelectionChange(rows) {   // 当前选中的所有的行数据
      this.ids = rows.map(v => v.id)
    },
    del(id) {
      this.$confirm('您确认删除吗？', '确认删除', {type: "warning"}).then(response => {
        this.$request.delete('/farmland/delete/' + id).then(res => {
          if (res.code === '200') {   // 表示操作成功
            this.$message.success('操作成功')
            this.load(1)
          } else {
            this.$message.error(res.msg)  // 弹出错误的信息
          }
        })
      }).catch(() => {})
    },
    handleEdit(row) {   // 编辑数据
      this.form = JSON.parse(JSON.stringify(row))  // 给form对象赋值  注意要深拷贝数据
      this.fromVisible = true   // 打开弹窗
    },
    handleAdd() {   // 新增数据
      this.form = { role: '用户' }  // 新增数据的时候清空数据
      this.fromVisible = true   // 打开弹窗
    },
    save() {   // 保存按钮触发的逻辑  它会触发新增或者更新
      this.$refs.formRef.validate((valid) => {
        if (valid) {
          this.$request({
            url: this.form.id ? '/farmland/update': '/farmland/add',
            method: this.form.id ? 'PUT' : 'POST',
            data: this.form
          }).then(res => {
            if (res.code === '200') {  // 表示成功保存
              this.$message.success('保存成功')
              this.load(1)
              this.fromVisible = false
            } else {
              this.$message.error(res.msg)  // 弹出错误的信息
            }
          })
        }
      })
    },
    reset() {
      this.zone = ''
      this.plant = ''
      this.load()
    },
    load(pageNum) {  // 分页查询
      if (pageNum)  this.pageNum = pageNum
      this.$request.get('/farmland/selectByPage', {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          zone: this.zone,
          plant: this.plant
        }
      }).then(res => {
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    handleCurrentChange(pageNum) {
      this.load(pageNum)
    },
    handleAvatarSuccess(response, file, fileList) {
      // 把user的头像属性换成上传的图片的链接
      this.form.avatar = response.data
    },
  }
}
</script>

<style scoped>

</style>